21323655

素因数分解:

$3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1423}}^1$

素因数の和:1477

約数の個数: 40

約数和(自身を含む): 39285312

約数和(自身を除く): 17961657

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 81, 111, 135, 185, 333, 405, 555, 999, 1423, 1665, 2997, 4269, 4995, 7115, 12807, 14985, 21345, 38421, 52651, 64035, 115263, 157953, 192105, 263255, 473859, 576315, 789765, 1421577, 2369295, 4264731, 7107885, 21323655]

約数ペア:

[(1, 21323655), (3, 7107885), (5, 4264731), (9, 2369295), (15, 1421577), (27, 789765), (37, 576315), (45, 473859), (81, 263255), (111, 192105), (135, 157953), (185, 115263), (333, 64035), (405, 52651), (555, 38421), (999, 21345), (1423, 14985), (1665, 12807), (2997, 7115), (4269, 4995)]